Acoustic Pianos (The kind with the real strings)

The Acoustic Piano comes in many different styles, designs, shapes and sizes.

They have two basic categories: the vertical and horizontal pianos.

Vertical Pianos

They are called vertical pianos because of their height and the position of the strings. The height range of the vertical piano is between 36 - 60 inches.
The Upright or Vertical piano is the most common piano due to its affordability, compactness and warm sound. The soundboard is vertical, strings and dampers stretching downward, hammers and dampers horizontal to the board. Since the hammers strike outward or horizontally, they take slightly longer to return to resting position than the hammers of a grand (which strike vertically). The support base of the soundboard, as well as wooden reinforcements, is visible from the backside.
Uprights usually cost less, depending on the model, however some can exceed grand pianos in total value. Although uprights often are depicted as inferior to the grand pianos, a five-foot upright can rival a typical grand in terms of tone quality and loudness. Essentially the keyboard is the same and like the grand, varies in material construction.

Type	Height	Width	Description
Spinet	35"-37"	~58"	Smallest of the pianos. Popular choice of people living in limited living spaces. i.e. apartments. 'Lost motion'; it has less power and accuracy due to size and construction
Consolette	38"-39"
Console	40"-43"	~58"	Comes in variety of styles and finishes. It is made with a direct action, thus producing more enhanced tones.
Studio	45"-48"	~58"	Seen mostly in music schools and music studios; it is very durable. Larger soundboard and larger strings produces good tone quality.
Full Size/Professional	48"-60"	~58"	Tallest among vertical pianos. When cared for properly, it stands the test of time and mantains its rich tone. Older type of piano your great grandparents would have played.

Grand Pianos

Grand pianos are the largest piano type, and frequently the most majestic (as well as expensive). Grand Pianos (also known as horizontal pianos) are categorized by horizontal soundboards sometimes stretching up to 4 ft. (front to back). The Soundboard is encased in a supportable opening platform that lifts on the left in an upwards direction. Dampers lie on top of the strings, adjacent to the hammers (also horizontal). The internal construction is braced with form-holders, usually made of wood, as well as the small equipped metal reinforcements. Essentially the casing is "bottomless" allowing one to see the soundboard support base, also of reinforced wood, which technically acts as the base. Keys consist of wood coated in ivory, or sometimes pure ivory, depending on the piano's manufacturers and classification. The grand piano has the standard 88 keys. Most of these pianos have sheet music platforms. A retractable cover slides over or folds down on the keys. Grand pianos are said to produce finer tones and has the most responsive key action.

Type	Height	Description
Petite Grand	4'5"-4'11"	Smallest of horizontal pianos, but still powerful.
Baby Grand	4'11"-5'6"	Very popular type because of its sound quality, esthetic appeal and affortability.
Living Room/Parlor/Medium Grand	5'7"-6'4"
Ballroom/Semi-Concert Grand	6'5"-7'5"
Concert Grand	7'6"-9'+	Largest of all grand pianos.